diff --git a/API.md b/API.md
index 854fd9271..01062d984 100644
--- a/API.md
+++ b/API.md
@@ -415,7 +415,7 @@ Proxy to real websocket instance.
 
 ### RESTful for API addons
 
-If a add-on will call itself, you can use `/addons/self/...`.
+If an add-on will call itself, you can use `/addons/self/...`.
 
 - GET `/addons`
 
diff --git a/hassio/hassos.py b/hassio/hassos.py
index 05c36dcb4..6a25bd543 100644
--- a/hassio/hassos.py
+++ b/hassio/hassos.py
@@ -66,7 +66,7 @@ class HassOS(CoreSysAttributes):
         return self._board
 
     def _check_host(self):
-        """Check if HassOS is availabe."""
+        """Check if HassOS is available."""
         if not self.available:
             _LOGGER.error("No HassOS available")
             raise HassOSNotSupportedError()
diff --git a/hassio/homeassistant.py b/hassio/homeassistant.py
index b6afc8d99..a4b8e57fb 100644
--- a/hassio/homeassistant.py
+++ b/hassio/homeassistant.py
@@ -191,7 +191,7 @@ class HomeAssistant(JsonConfig, CoreSysAttributes):
 
     @property
     def hassio_token(self):
-        """Return a access token for the Hass.io API."""
+        """Return an access token for the Hass.io API."""
         return self._data.get(ATTR_ACCESS_TOKEN)
 
     @property
@@ -260,7 +260,7 @@ class HomeAssistant(JsonConfig, CoreSysAttributes):
             _LOGGER.warning("Version %s is already installed", version)
             return HomeAssistantUpdateError()
 
-        # process a update
+        # process an update
         async def _update(to_version):
             """Run Home Assistant update."""
             try:
diff --git a/hassio/snapshots/__init__.py b/hassio/snapshots/__init__.py
index f7f6c322f..8440e2164 100644
--- a/hassio/snapshots/__init__.py
+++ b/hassio/snapshots/__init__.py
@@ -118,7 +118,7 @@ class SnapshotManager(CoreSysAttributes):
     async def do_snapshot_full(self, name="", password=None):
         """Create a full snapshot."""
         if self.lock.locked():
-            _LOGGER.error("It is already a snapshot/restore process running")
+            _LOGGER.error("A snapshot/restore process is already running")
             return None
 
         snapshot = self._create_snapshot(name, SNAPSHOT_FULL, password)
@@ -153,7 +153,7 @@ class SnapshotManager(CoreSysAttributes):
                                   password=None):
         """Create a partial snapshot."""
         if self.lock.locked():
-            _LOGGER.error("It is already a snapshot/restore process running")
+            _LOGGER.error("A snapshot/restore process is already running")
             return None
 
         addons = addons or []
@@ -201,7 +201,7 @@ class SnapshotManager(CoreSysAttributes):
     async def do_restore_full(self, snapshot, password=None):
         """Restore a snapshot."""
         if self.lock.locked():
-            _LOGGER.error("It is already a snapshot/restore process running")
+            _LOGGER.error("A snapshot/restore process is already running")
             return False
 
         if snapshot.sys_type != SNAPSHOT_FULL:
@@ -274,7 +274,7 @@ class SnapshotManager(CoreSysAttributes):
                                  addons=None, folders=None, password=None):
         """Restore a snapshot."""
         if self.lock.locked():
-            _LOGGER.error("It is already a snapshot/restore process running")
+            _LOGGER.error("A snapshot/restore process is already running")
             return False
 
         if snapshot.protected and not snapshot.set_password(password):